Boiler-tap guide



Novjll, 1930. v- G. FENK 1,781,634

BoILER TAP GUIDE y Filed April 10, 1928 v u ""WIWWWW BY W. j

WITNESS: ATTORNEY Patented Nov. 11, 1930 GEORGE FENK, or Bnooxniv, Nnwvcan BOILER-TAP GUIDE Application filed April 10,

` y guided for making the desired opening, and

in a manner which will not only expedite the operation but will prevent injury to the operator. Y

A further object is the provision of a guide 1o for this purpose which, when not in use, may

be collapsed to produce a small package which may be readily carried by a plumber or steam fitter or which may be conveniently packed in the mechanics kit. Y

For a full and comprehensive understanding of my improvement reference is to be had to the following detailed description which is to be read in connection with the accompanying drawing.

In the drawings: Figure l is a plan view illustrating the p arrangement of my improvement upon a boiler to be tapped.

Figure 2 is a view taken at right angles to Figure l.

Figure 3 is a side elevation of the improvement upon an enlarged scale with parts broken away and parts in section.

Figure 4 is a view substantially similar to Fig. 1 but showing the improvement supported upon the return steam line pipe for the boiler. Essentially my improvement contemplates the employment of a yoke head l. The arms of this yoke are arranged at an angle of approXimately 90 degrees, and one of the arms of the yoke has its outer end bifurcated to provide projecting fingers 2 that have openings therethrough that afford bearings for trunnions 3 on the ends of a spirit level bubble 5. Any suitable means may be employed for holding the trunnions 3 from free turning in their bearings so that the spirit level bubble 5 will likewise be held from free turning.

Either integrally formed with or centrally secured to and depending from the yoke l there is a stem 7 which is in the nature of a rod, and this stem is received in a tubular member 8 which has, at its outer end, opf positely disposed angularly arranged prongs 9. It should be stated that only the outerV ends ofthese prongs 9 are pointed. A binding element, such as a thumb screw l0, is threadedthrough the tube 8 `for contacting with .the stem 7 and said screwthereby holds the stemand consequently the yoke adjusted with respect to the tube' and itsforked end 9.

The yoke 1 is comparatively Wide,y the width thereof being suilicient to snugly receive between the arms thereof the nonthreaded portion of a boiler 0r pipe tap 11. The tap, ofcourse, is turned either by a screw or Vsuitable handle operated socket.V After the top has been forced in theboiler or in a pipe a distance sufficient to say cut two or three threads therein the guide may be removed and the operator may further turn the top to complete the opening in the pipe ory boiler. With my improvement there is no liability of an angle orirregular hole being tapped in either a pipe or boiler.

In the construction disclosed by Figure k1 the pointed ends of the forks 9 rest on a ground surface, andthe yoke is adjusted so that the tap is brought in a line with the 75 opening to be threaded in the boiler 12. The level bubble 5 insures the devices being sustained in a proper vertical position. When the boiler is provided with a return pipe l5 the angle forkedend 9 of the tubular member 8 straddles Athis pipe as disclosed by Fig. 5 of the drawings and the device may be effectively'supported thereon inL a vertical position bythe operator observing the bubble in the bubble glass. l

TheV simplicity and the operation of the f improvement will be readily apparent to those skilled in the art to which the invention relates without further detailed description. 9-0 f Having described the invention, I claim:

l. A guide for the purpose set forth, comprising a yoke having a stem extending therefrom, a ytubular member in which the f stem is received, binding means for adjustably securing the stem in the tubular member and said tubular member having forked prongsat the outer end thereof. j

2. A guide-for the purpose set forth, com- K prising a yoke having its angle arms ar- *1D0 Serial No. 268,996.

' ranged at angles of vepproximacely ninety degrees, a level bubble glass supported on the end of one of the arms, a stem on the yoke, a, tubular member in which the stem is reeeived, a bindngmeans for adjustably securing the stem in the tubular member, and -angularly disposed oppostely directed prongs on the outerend of the Sleeve,

In testimony whereof I aX my sigiietyre.

GEORGE FENK.v i 

